Abstract
A factorial experiment was conducted during three successive cropping seasons to investigate the effects of nitrogen, phosphorus, potassium, and manure on the growth and yield of Brussels sprouts. Plant development was delayed by a lack of phosphorus. Nitrogen and phosphorus applications decreased the yields of small sprouts and increased the yields of those greater than 2.3 cm in diameter. Total marketable yields were substantially increased by nitrogen and phosphorus but were only slightly affected by rates of applied potassium. Yield increases from high rates of nitrogen were obtained only when accompanied by adequate phosphorus. A manure treatment slightly increased marketable yields but the effect was usually not significant.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Lack of phosphorus delayed Brussels sprouts development.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- a lack of phosphoruse0
- Outcome
- Plant developmente0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Plant development was delayed by a lack of phosphorus”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Nitrogen application decreased yield of small sprouts.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- Nitrogene0
- Outcome
- yields of small sproutse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen and phosphorus applications decreased the yields of small sprouts”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Phosphorus application decreased yield of small sprouts.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- phosphoruse0
- Outcome
- yields of small sproutse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen and phosphorus applications decreased the yields of small sprouts”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Nitrogen application increased yield of sprouts greater than 2.3 cm diameter.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- Nitrogene0
- Outcome
- yields of those greater than 2.3 cm in diametere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen and phosphorus applications decreased the yields of small sprouts and increased the yields of those greater than 2.3 cm in diameter”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Phosphorus application increased yield of sprouts greater than 2.3 cm diameter.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- phosphoruse0
- Outcome
- yields of those greater than 2.3 cm in diametere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“phosphorus applications decreased the yields of small sprouts and increased the yields of those greater than 2.3 cm in diameter”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Nitrogen substantially increased total marketable yields.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- nitrogene0
- Outcome
- Total marketable yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Total marketable yields were substantially increased by nitrogen and phosphorus”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Phosphorus substantially increased total marketable yields.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- phosphoruse0
- Outcome
- Total marketable yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Total marketable yields were substantially increased by nitrogen and phosphorus”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Potassium rates affected total marketable yield only slightly.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- rates of applied potassiume0
- Outcome
- Total marketable yieldse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Total marketable yields were substantially increased by nitrogen and phosphorus but were only slightly affected by rates of applied potassium”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
High nitrogen rates increased yield only with adequate phosphorus.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- high rates of nitrogene0
- Outcome
- Yielde0
- Direction
- increasese0
- Qualifier
- only when accompanied by adequate phosphoruse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Yield increases from high rates of nitrogen were obtained only when accompanied by adequate phosphorus”
t0“BRUSSELS SPROUTS”
Claim · model-written summary
Manure slightly increased marketable yields, usually without statistical significance.
- Taxon
- BRUSSELS SPROUTS
Brassica oleracea var. gemmiferat0 - Treatment
- manure treatmente0
- Outcome
- marketable yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“A manure treatment slightly increased marketable yields but the effect was usually not significant”
t0“BRUSSELS SPROUTS”
The same questions in other papers
nitrogen · yield · Brassica oleracea (wild cabbage)Results differ
143 papers in the same direction as this paper · 17 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- negative
160 papers more in this group
See all 164 papers →phosphorus · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →phosphorus · growth · Brassica oleracea (wild cabbage)Positive and negative results
25 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- negative
- no effect
26 papers more in this group
See all 30 papers →nitrogen · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results
33 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- no effect
- negative
36 papers more in this group
See all 40 papers →fertilization · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results
49 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
51 papers more in this group
See all 55 papers →phosphorus · yield · Brassica oleracea (wild cabbage)Positive and negative results
53 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
52 papers more in this group
See all 56 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.